Among the myriad organisms preserved in amber, only four small frogs have been discovered, all representing the genus Eleuthrodactylus, which is still found in the Caribbean.

Although the Caribbean contains very few fossils of land vertebrates that are much older than 20 thousand years, a diverse vertebrate fauna is found in Dominican amber. Eleuthrodactylus probably bred in the water within the bromeliads. In this piece of amber there are the remains of two frogs (indicated in a line drawing you can see with a browser that supports gif animation): a complete frog whose backbone is easily visible, and a portion of another, which has decayed and is surrounded by fly larvae. A millipede was also caught scavenging on frog bones. The decaying frog probably died while partially immersed in resin, where it became infested, and was then completely covered by another resin flow.